Question about Broadcom BCM5721 NetXtreme Ethernet Controller for Servers

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NETWORK CONNECTION ON PC

To work locally on my computer, I generally "disable" the "Network Enable" (LAN) icon on my desktop, just in case, when I no longer need to be connected to the internet. I have a recent problem where the computer is restarting everytime I try to "enable" the LAN icon. The NIC card is fine as it shows up in the devices. The driver seems fine. I have a McAfee AV product installed, so I do not doubt any viruses (however, can't discount any!). Would need some assistance on this, soonest. Thanks.

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  • Jason M May 11, 2010

    Click Start -> Run and type

    eventvwr

    Click okay. When the Event Viewer comes up, click Application. Do you see any events correlating to the time you try to enable the NIC? Check out the System section as well.


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Install operating again some files has been missing

Posted on Jan 30, 2009

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Wireless radio switch


Usually WIFI is Disabled/OFF if you typically use a wired LAN connection, and a lot of systems only allow you to have One Or The Other on at one time, otherwise it would not know which method to send your internet and network traffic.

So, you may have to Temporarily Disable the LAN connection before you can Enable the WIFI connection.

If your dell has an antenna sticking out of the back, then you have wifi, otherwise I believe this model needs a wireless card. If you do have wifi, here's how to turn it on.

- click Start,
- choose Control Panel on the right
- If the top right says 'View by: Category'
click the down arrow on the right and choose either Large Icons
or Small Icons.
- choose Network and Sharing Center
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if it is not on, chick on Change Adapter Settings on top left
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2. Wireless Connection
- right click the Wireless Connection,
- choose Status

> the next window lets you Enable your wireless device, check its
Properties, or Diagnose connection issues.

Let me repeat from above:
Usually WIFI is Disabled/OFF if you typically use a wired LAN connection, and a lot of systems only allow you to have One Or The Other on at one time, otherwise it would not know which method to send your internet and network traffic.

So, you may have to Temporarily Disable the LAN connection before you can Enable the WIFI connection.

Just reverse this later if you want to go back to a wired connection on the desktop machine. I use all WIFI at home, then I connect my laptop by a cable to my router if I have an issue to solve, which is maybe once every two years.

It's easier when you are doing it than it may seem just reading this.

Hope this helps
All the best to you,
KerryHos

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Cant connect to lan modem


1. check first your lan connections,
click start, go to control panel, click network connections din check your local area connection.
2. right click the local area connection, then try to disable and enable it.
3. if not been solved,

try to look the driver of your ethernet drivers

look at and search your motherboard's brand and model then search it and download for your drivers for your network adapter.

or you may try this,

1. right click my computer
2. click properties
3. clcik hardware tab
4. click device manager,
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The computer does not show the internet connection in the monitor. Before I reinstalled the windows it shows the message: no connectivity or limitated connectivity. The comcast modem was damaged so they...


Even though it does not show the connection on your monitor, the connection may still be working. Did you post this problem from the same computer? If yes, then you are fine.

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When i connect to computer ethernet light does not come on


If the link LED does not light up on the computer then the fault is most likely a faulty LAN cable or the LAN card is faulty.
Replace the cable first and if this doesn't work check the LAN card and reinstall the LAN driver. If this doesn't work then then LAN card is faulty and needs to be replaced.

Dec 10, 2009 | Linksys WRT300N Wireless Router

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I have aa ACER X3200 and the net work adapter will not recognize the LAN plugged in. The LAN source is active and works on other computers I have.


Check the Network Connections (in control panel) to see if the LAN connection is enabled. If not there, you'll need to setup a new network connection. If it is there, right-click the connection icon and choose enable.

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Hi,
Right click on the icon in the system tray and select open network connections, a new window will pop up, right click on the disabled network adapter and select enable.
If the icon is not in the system tray go to the control panel, select network connections and enable the adapter.
If it still won't enable you may have to enable the LAN (network adapter) in the BIOS.
Please post back if you need anymore assistance.



Regards.

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I have to connect the LAN cable before wireless will connect


Try going to the network control panel and disabling the local connction.

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How to setup network adaptor


Hi there,

Technically you should provide 'IP Address" to your network card. Generally IP address is provided by the ISP (Internet Service Provider) provider you are using.

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This will work.
Regards

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Although the internet connects on my PC my laptop won't connect via the router


check that your router is working that lan cable is working, and right click on network places in your laptop screen go to the properties and check there local area conection is enable if disable enable it and check your ip, if there is no local area conection you have to install the network adapter driver

Sep 27, 2008 | Computers & Internet

1 Answer

Cannot connect to internet from acer laptop but am connected to a wireless network, what am I not doing?


Check if your LAN card is enable:
Go to Start and click on Control Panel.
2) Control Panel window will appear. Double click on Network Connections.
3) Network Connections window will appear. Right click Local Area Connection.
If the connection is currently enabled, the first option in this menu will be Disable. Otherwise, the option will be Enable.
Click on the Enable/Disable option to enable/disable your network connection.




























Jul 26, 2008 | Computers & Internet

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